Hot couple Jessica Simpson and Tony Romo thrilled regulars at tribute group METAL SKOOL's weekly showcase in Hollywood on Monday night (28Jan08) with a rocking duet. The good-looking pair sang Journey's Don't Stop Believin', backed by the band at the Key Club. Romo initially refused to join his pop star girlfriend onstage, but reluctantly agreed to sing with her when fans started chanting out his name. Metal Skool's Monday night concerts have become famous for star turns - Lisa Marie Presley, Pink and Kelly Clarkson have all made unannounced appearances during the tribute act's shows in the past year.